Lochsa River flowing through the forested Clearwater National Forest in Idaho
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Fly fishing report · West

Lochsa River Fishing Report — Idaho

Check the Lowell flow and today’s heat first. Fish early, carry a thermometer, and use the rule for the reach you choose.

See the Lowell flow chart ↓

Photo: U.S. Forest Service Northern Region Opens in a new tab. · CC BY 2.0

Good day to fish?Latest river check
Good fishing

Yes. Fishing looks good.

Good fishing based on the verified flow and weather. No official live water-temperature reading is available. Carry a thermometer during warm weather and stop if the water is stressful for trout.

See update time and confidence
Live data checkHighHow much of the live flow, weather, and alert data came back.
Today's callMediumWater temperature not verified; do not use this score to clear warm-water risk.
Score calculated Aug 22, 2026, 7:18 PM PDTUsually checks again about every 45 minutes
Access choicesNo clear best mode

Wade and Bank / edge have the same top score. Use current access, footing, weather, and local rules to choose.

Wade74/100

Wading is in play only where your chosen access has clear footing, legal entry, and no forced crossings.

Bank / edge74/100

Bank and edge fishing remains a practical low-commitment option if access is legal and footing is safe.

FloatNot recommended

This report does not recommend floating this reach.

Your plan

A simple Lochsa plan.

Check the live Lowell graph before you leave. This page has no live water temperature, so carry a thermometer.

Start with
A dry fly in the soft water beside faster current.
Then try
One nymph or a soft hackle if fish stay down.
Stop when
The river reaches 73°F, the current turns pushy, or you lose a safe exit.

Live river check

What the river is doing

Check the latest flow and weather before you go. A quick change can make the river harder or less safe to fish.

Showing the latest stored river check while current readings load.
Flow
464 cfs
From the latest stored river check. Open the official source for the newest reading.
Air now
87°F

Current NWS forecast period

Next 24h high
88.0°F

NWS air forecast near

Rain chance
16%

For this forecast period

This is an air forecast, not a river-temperature reading. Check the water with a stream thermometer before fishing in hot weather.

Latest stored weather check

Patchy Smoke

Patchy Smoke

Wind
1 mph
Weather checked

Recent flow chart is loading

The latest stored reading is shown above. Check the official source below if you need the newest value now.

More forecast and source details
National Weather Service

Lochsa River near Lowell forecast point

The National Weather Service forecast is temporarily unavailable.

Live data

Where these readings come from

RiverReports gauge: Lochsa River near Lowell

How to fish it

Let the flow choose the water.

On this canyon river, the best trout water is often the soft water close to shore.

01

Steady or falling

Look for soft pockets and short seams you can reach from the bank.

02

Low and clear

Use a longer leader, smaller flies, and quiet approaches.

03

High or rising

Do not wade. Fast canyon current leaves little room for error.

04

73°F water

Pause trout fishing. The Lowell flow gauge does not replace a thermometer.

Fishing words used on this page
Cubic feet per second (cfs)
Cubic feet per second, or cfs, shows how much water passes the gauge each second.
Nymph
A nymph is a young water insect. Anglers also use the word for a fly that copies it.
Seam
A seam is the line where fast and slow water meet.
Tailout
A tailout is the shallow, slower water at the lower end of a pool.
Blue-winged olive (BWO)
Blue-winged olives, or BWOs, are small mayflies that often hatch in cool or cloudy weather.
Caddis
Caddis are small water insects. The adults look a little like tiny moths.
Midge
Midges are tiny flies and a common trout food, especially in cold water.
River reach
A reach is one named section of a river or stream.
Soft hackle
A soft-hackle fly has moving fibers that can look like an insect rising through the water.
Terrestrial
Terrestrials are land insects, such as ants, beetles, and grasshoppers.
Why this call

Why this score

HeatUse caution

The current NWS air forecast is about 87F, and the next 24-hour high reaches about 88F. This is an air forecast, not a water-temperature reading. Fish early and check the river with a stream thermometer. Pause trout fishing at 73°F or warmer.

FlowHelps

USGS shows 464 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1911-2025, 98 readings) show a typical middle range of 420 cfs to 693 cfs. Flow is within the typical range for this date, so weather, temperature, and access become the next checks.

SeasonHelps

Summer · June through August: The main dry-fly window, with an early start and a water-temperature check.

Public alertsHelps

No active NWS alert was returned for this forecast point.

Fishing usefulnessHelps

Leave when the river is rising or the bank gives you no clean exit.

Trip notes

Trip notes

Four things worth checking.

Best flows

Use the live Lowell graph. Steady or falling water with clear bank pockets gives the simplest plan.

When to leave

Leave when the river is rising or the bank gives you no clean exit.

Local plan

Pick one named access, fish the soft water near shore, then move only if the next stop is clearly safer.

Backup water

If the Lochsa does not fit, check the Clearwater or South Fork Clearwater report before changing rivers.

Fish on this river

What you can fish for

Westslope cutthroat trout

Primary fish

When: Best after runoff through early fall

Fish dries and short droppers in softer pockets when the water is cool.

Rainbow trout

Also present

When: Same trout window

Use the same reach rules and temperature check as cutthroat.

Mountain whitefish

Also present

When: Year-round where the river is open and safe

Nymphs and soft hackles work in deeper runs and riffle tails.

Bull trout

Catch and release only

When: Present in the system

Release every bull trout. Do not mistake one for a brook trout.

Chinook salmon

Not open now

When: 2026 season closed August 10

Do not target salmon unless Idaho Fish and Game opens a new Lochsa season.

Steelhead

Fishing prohibited

When: No open Lochsa steelhead fishery

The Lochsa is a wild steelhead refuge. Steelhead fishing is prohibited.

What to try

Lochsa flies through the year.

Start with the season. Change one fly at a time.

SeasonWhat to look forFlies to try

Each fly name links to its matching Fly Box guide.

Access and safety

Highway 12 access and Idaho rules.

Use named access sites and read the rule for the reach you choose. Steelhead fishing is prohibited. Chinook is closed unless Idaho opens a new season. Trout rules change at Wilderness Gateway, and bull trout are catch-and-release.

Reach plan

Choose the rules before the water.

01

Lower reach · December 1 to Friday before Memorial Day weekend

From the mouth to the Wilderness Gateway motor bridge: barbless hooks. Trout are catch-and-release. No bait except maggots.

Read the official lower-reach rule in a new tab

White Pine

A primitive nonmotorized put-in and takeout at milepost 138. It unloads one group at a time, parks four vehicles, has no potable water, and does not list restroom information.

Check White Pine in a new tab

There are no services between Lowell and Powell, a 64-mile stretch. Fuel and pack food before you go.

IDFG lists no developed boat ramp. This report treats the Lochsa as bank-and-wade water, not a float recommendation.

Use named access sites. Do not stop where a narrow shoulder or blind curve makes parking unsafe.

Compare another river

If this water does not fit the day, check another report before you start the drive.

River sources

Where this report comes from.

Official flow, rules, access, weather, and trout-temperature guidance were checked August 20, 2026. No field visit is claimed.

How this report was checked

How this report was checked

Trip guidance checked

What was checked: Official flow, rules, species, access, weather, and trout-temperature sources were checked. BlueStreamFly does not claim a Lochsa field visit or live hatch observation for this update.

Live measurements and forecasts keep their provider timestamps. Rules, access, and trip guidance use the source-review date shown here. BlueStreamFly planning advice is editorial interpretation, not an agency notice.

First-hand experience: BlueStreamFly does not claim a first-hand visit or local field test for this report unless a real contributor is explicitly named and linked.

See all 11 checked sources

Rules and closures

Check what is allowed, where the rule applies, and whether the river is open.

Flow and weather

Check the latest river reading and forecast before you leave.

Access and land

Check public entry points, land rules, and seasonal access changes.

More helpful links

Use these links for stocking, safety, and other local details.

Recently checked. Last checked . Conditions and rules can still change, so open decision-critical links before fishing.

See something wrong? Report a source problem. Please do not send private spots or private access notes.

Quick answers

A few last checks.

Can I fish for steelhead on the Lochsa?

No. Idaho Fish and Game says steelhead fishing is prohibited on the Lochsa and its smaller streams.

Is Chinook fishing open?

No. The 2026 Lochsa Chinook season closed August 10. Check Idaho Fish and Game for any future opening.

Can I float the Lochsa?

This report does not recommend a float. IDFG lists no developed ramp, and White Pine is a primitive nonmotorized access for skilled river users.

Does the Lowell gauge show water temperature?

Not on this page. Carry a thermometer and pause trout fishing at 73°F.